Love is an action and a feeling. Robots can do loving things for us. That Jetson cartoon nanny android cleaned up the house for that family and that is loving or can be. The most important thing about love is rooted in actions, truth, eternal principles, eternal things that never dies, priorities, perspective, destiny, things that truly matter. Now, can robots feel love or other emotions? Now, if an emotion is an input, a signal, then you can argue to say that an emotion message can be sent into the computer brain of the robot.